/*
  Copyright 2014 The Oppia Authors. All Rights Reserved.

  Licensed under the Apache License, Version 2.0 (the "License");
  you may not use this file except in compliance with the License.
  You may obtain a copy of the License at

      http://www.apache.org/licenses/LICENSE-2.0

  Unless required by applicable law or agreed to in writing, software
  distributed under the License is distributed on an "AS IS" BASIS,
  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
  See the License for the specific language governing permissions and
  limitations under the License.
*/

/* Animation keyframes. These must be placed at the top of the file
   in order to work in IE.
*/
@-webkit-keyframes dot {
  0% { opacity: 0; }
  0% { opacity: 0; }
  100% { opacity: 1; }
}
@-moz-keyframes dot {
  0% { opacity: 0; }
  0% { opacity: 0; }
  100% { opacity: 1; }
}
@keyframes dot {
  0% { opacity: 0; }
  0% { opacity: 0; }
  100% { opacity: 1; }
}

/* Angular material overrides. */
md-input-group.long > input
{
  width: 100%;
  height: 45px;
}

md-input-group.oppia-blue-on-focus > input:focus {
  border-bottom-color: rgb(63, 81, 181);
  border-bottom-width: 2px;
}

md-input-group.md-default-theme label
{
  font-size: 16px;
  font-weight: 200;
  margin-bottom: 0;
}

.md-button-success {
  color: #009688;
}

/* Bootstrap overrides and additions. */
html {
  height: 100%;
}

body {
  color: #222;
  font-family: "Roboto";
  height: 100%;
  margin: 0 auto;
  padding: 0;
  width: 100%;
}

h1, h2 {
  color: #000;
}

h3 {
  color: #222;
  line-height: 1.1;
}

a {
  color: #0844aa;
  cursor: pointer;
}

a:hover {
  color: #3f2c76;
}

a:focus {
  outline-style: none;
}

input.ng-dirty.ng-invalid, md-input-group.md-default-theme input.ng-dirty.ng-invalid {
  border-bottom-color: #F44336;
}

/* Change the color of odd-numbered lines in a table. */
.table-striped > tbody > tr:nth-child(odd) > td,
.table-striped > tbody > tr:nth-child(odd) > th {
  background-color: #f0f0f0;
}

.oppia-form-error {
  color: red;
}

.oppia-rule-warning-text {
  color: red;
  font-style: italic;
}

.oppia-serious-warning-text {
  color: red;
}

.oppia-disabled-contenteditable {
  background-color: #eee;
  cursor: not-allowed;
  padding: 10px 5px;
  opacity: 1;
}

p {
  line-height: 1.5;
  /* The following should be the same as the line-height (1.5). */
  margin: 1.5em 0;
  text-align: left;
  word-spacing: 0;
}

#wrapper {
  min-height: 100%;
  position: relative;
}

.label {
  margin: auto 4px;
}
.label-info {
  background-color: #18447E;
}

/*
  The following rule ensures that, as the viewport gets
  smaller, any media will scale down according to its
  container's width.
*/
img, video, canvas {
  max-width: 100%
}

textarea {
  width: 90%;
}

/*
  Adjustments for the jWysiwyg RTE, to allow it to adopt the size
  of its container.
*/
div.wysiwyg, div.wysiwyg iframe.wysiwyg-content {
  width: 100%;
}
div.wysiwyg iframe.wysiwyg-content-small {
  height: 50px;
}
div.wysiwyg iframe.wysiwyg-content-large {
  height: 200px;
}

/*
  Styles for the global navigation sidebar menu.
*/
.oppia-base-container {
  height: 100%;
  margin-left: auto;
  margin-right: auto;
  min-height: 100%;
  position: relative;
}

/*
  Note that adding "overflow-y: scroll;" will
  break infinite scrolling in the gallery page.
*/
.oppia-content-container {
  height: 100%;
  left: 0;
  position: relative;
  transition: transform 0.5s;
  -webkit-transition: -webkit-transform 0.5s;
}

.oppia-sidebar-menu-open .oppia-content-container::after {
  height: 100%;
  opacity: 1;
  -webkit-transition: opacity 0.5s;
  transition: opacity 0.5s;
  width: 100%;
}
.oppia-sidebar-menu-closed .oppia-content-container::after {
  opacity: 0;
  -webkit-transition: opacity 0.5s;
  transition: opacity 0.5s;
}

.oppia-sidebar-menu {
  background: #fff;
  color: white;
  height: 100%;
  left: 0;
  position: fixed;
  top: 0;
  -webkit-transform: translate3d(-100%, 0, 0);
  transform: translate3d(-100%, 0, 0);
  width: 250px;
  z-index: 100;
}
.oppia-sidebar-menu-transition {
  -webkit-transition: all 0.5s;
  transition: all 0.5s;
}
.oppia-sidebar-menu::after {
  background: rgba(0,0,0,0.2);
  content: '';
  display: none;
  height: 100%;
  opacity: 1;
  position: absolute;
  right: 0;
  top: 0;
  -webkit-transition: opacity 0.5s;
  transition: opacity 0.5s;
  width: 100%;
}

.oppia-sidebar-menu-icon {
  margin-left: 8px;
  margin-right: 19px;
}

.oppia-sidebar-menu ul {
  list-style: none;
  margin-bottom: 0;
  padding-left: 0;
  font-size: 18px;
}
.oppia-sidebar-menu hr {
  margin-top: 0;
  margin-bottom: 0;
}
.oppia-sidebar-menu .oppia-sidebar-section-header {
  color: #888;
  display: block;
  margin-left: 10px;
  padding: 1em 0 0 0;
  text-decoration: none;
}
.oppia-sidebar-menu a {
  color: #333;
  display: block;
  padding: 1em 0 1em 18px;
  text-decoration: none;
}
.oppia-sidebar-menu a:hover {
  background: rgb(243, 248, 255);
}
.oppia-sidebar-menu li.active a {
  background: rgba(243, 248, 255, 0.5);
}

.oppia-sidebar-logo {
  height: 32px;
  margin-bottom: 5px;
  margin-left: 15px;
}
.oppia-sidebar-logo-container {
  color: #333;
  margin: 0 auto;
  width: 120px;
}

.oppia-sidebar-header {
  background: #eee;
  border-bottom: 1px solid #ccc;
  height: 56px;
  padding-top: 6px;
}

.oppia-sidebar-menu-open .oppia-sidebar-menu {
  box-shadow: 1px 0 3px rgba(0,0,0,0.12), 1px 0 2px rgba(0,0,0,0.24);
  -webkit-transform: translate3d(0, 0, 0);
  transform: translate3d(0, 0, 0);
  visibility: visible;
}
.oppia-sidebar-menu-open .oppia-sidebar-menu::after {
  height: 0;
  opacity: 0;
  -webkit-transition: opacity 0.5s, width 0.1s 0.5s, height 0.1s 0.5s;
  transition: opacity 0.5s, width 0.1s 0.5s, height 0.1s 0.5s;
  width: 0;
}

/*
  This is needed for proper display of tabs. See

  https://github.com/angular-ui/bootstrap/commit/8620aedba99b05822311
*/
.navbar-nav, .pagination {
  cursor: pointer;
}

.navbar {
  border: 0px;
  margin-bottom: 0;
  width: 100%;
}

.navbar-nav.oppia-navbar-nav > li > a {
  color: #fff;
  font-family: "Roboto", "Arial", sans-serif;
  font-size: 16px;
  font-weight: 400;
  height: 56px;
  padding-top: 17px;
}

.oppia-navbar-nav {
  margin-left: 20px;
}

.oppia-navbar-breadcrumb {
  color: #fff;
  cursor: default;
  font-family: "Roboto", "Arial", sans-serif;
  font-size: 16px;
  font-weight: 400;
  line-height: 20px;
  padding-top: 17px;
  padding-bottom: 15px;
}

.oppia-navbar-breadcrumb-separator {
  padding-right: 7px;
}
.oppia-navbar-breadcrumb-separator:after {
  content: ">";
}

.navbar-default .navbar-nav > li > a:hover,
.navbar-default .navbar-nav > li > a:focus {
  background: rgb(10, 48, 106);
  color: #fff;
}

.navbar-default .navbar-nav > li > a.oppia-no-hover-change:hover,
.navbar-default .navbar-nav > li > a.oppia-no-hover-change:focus {
  background: inherit;
  color: #fff;
}

.navbar-nav > li.active > a, .navbar-nav > li.active > a:hover,
.navbar-nav > li.active > a, .navbar-nav > li.active > a:focus {
  color: white;
  background: rgb(2, 38, 86);
}

.navbar-default .navbar-container {
  background: #05a69a;
  box-shadow: 0 1px 5px rgba(12,12,24, .3);
  height: 56px;
}

.navbar-default .dropdown-menu {
  background: #fff;
}

.navbar-default .navbar-nav > li > a, {
  color: #fff;
}

.navbar-default .navbar-nav > li > a:hover,
.navbar-default .navbar-nav .open > a:hover,
.navbar-default .navbar-nav .open .dropdown-menu > li > a,
.navbar-default .navbar-nav .open .dropdown-menu > li > a:hover {
  color: #05a69a;
}

.navbar-default .navbar-nav > li > a:hover,
.navbar-default .navbar-nav > li > a:focus,
.navbar-default .navbar-nav .open > a:hover,
.navbar-default .navbar-nav .open > a:focus,
.navbar-default .navbar-nav .open .dropdown-menu > li > a:hover,
.navbar-default .navbar-nav .open .dropdown-menu > li > a:focus {
  background: #fff;
}

.navbar-default .navbar-nav > li.dropdown.open,
.navbar-default .navbar-nav > li.dropdown.open > a {
  background: #fff;
  color: #05a69a;
}

.navbar-default .navbar-nav > .active > a,
.navbar-default .navbar-nav > .active > a:hover,
.navbar-default .navbar-nav > .active > a:focus {
  background-color: #06b9ac;
  color: #fff;
}

/* In Bootstrap, the link at the top of the default dropdown menu cannot be
   clicked -- so, in such cases (e.g. for the 'Sign in' link at the top right),
   we use this instead.
*/
.oppia-clickable-dropdown:hover ul.dropdown-menu {
  display: block;
}

.oppia-share-dropdown-menu {
  min-width: 30px;
  width: 47px;
}

.oppia-share-dropdown-menu li > a {
  font-weight: bolder;
  padding: 10px;
  text-align: center;
}

.nav .dropdown:hover > .dropdown-menu {
  border: none;
}

/* Show the navbar submenu dropdowns on-hover rather than on-click, if the
   screen size is large enough. */
@media (min-width: 768px) {
  .nav .dropdown:hover > .dropdown-menu {
    display: block;
  }
  .nav .dropdown:hover > .dropdown-menu > li > a {
    color: #05a69a;
  }
  .nav .dropdown:hover > .dropdown-menu > li > a:hover {
    background-color: #eee;
    color: #888;
  }
}

.oppia-main-content {
  margin: 10px;
  padding: 10px;
  width: 100%;
}

.oppia-align-center {
  float: none;
  margin: 0 auto;
  text-align: center;
}

.oppia-exploration-ctrl {
  margin: 0 5px;
}

.oppia-loading-fullpage {
  border: 1px;
  border-radius: 5px;
  font-size: 200%;
  height: 100%;
  position: fixed;
  top: 35%;
  width: 100%;
  z-index: 1000;
}
.oppia-loading-dot-one {
  opacity: 0;
  animation: dot 1.5s infinite;
  animation-delay: 0.0s;
  -moz-animation: dot 1.5s infinite;
  -moz-animation-delay: 0.0s;
  -webkit-animation: dot 1.5s infinite;
  -webkit-animation-delay: 0.0s;
}
.oppia-loading-dot-two {
  opacity: 0;
  animation: dot 1.5s infinite;
  animation-delay: 0.3s;
  -moz-animation: dot 1.5s infinite;
  -moz-animation-delay: 0.3s;
  -webkit-animation: dot 1.5s infinite;
  -webkit-animation-delay: 0.3s;
}
.oppia-loading-dot-three {
  opacity: 0;
  animation: dot 1.5s infinite;
  animation-delay: 0.6s;
  -moz-animation: dot 1.5s infinite;
  -moz-animation-delay: 0.6s;
  -webkit-animation: dot 1.5s infinite;
  -webkit-animation-delay: 0.6s;
}

.oppia-navbar-button-container {
  border-radius: 0;
  margin-top: 10px;
}

.btn.oppia-navbar-add-exploration-button {
  background-color: rgba(5, 190, 178, 0.9);
  color: rgba(255,255,255,0.8);
  font-size: 15px;
  height: 34px;
  padding: 3px 12px 4px 12px;
  margin-right: 20px;
}

@media (max-width: 1050px) {
  .oppia-gallery-language-selector {
    display: none;
  }
  .oppia-gallery-category-selector .btn {
    border-bottom-right-radius: 4px;
    border-top-right-radius: 4px;
  }
}

@media (max-width: 890px) {
  .oppia-gallery-category-selector {
    display: none;
  }
  .oppia-splash-search-text-input {
    border-bottom-right-radius: 4px;
    border-top-right-radius: 4px;
  }
}

@media (max-width: 768px) {
  .oppia-navbar-add-exploration-button {
    display: none;
  }
}

.btn.oppia-navbar-add-exploration-button:hover {
  background-color: rgba(5, 190, 178, 1);
  color: rgba(255,255,255,1);
}

.oppia-navbar-add-exploration-button-plus {
  font-size: 1.2em;
  font-weight: bold;
  margin-right: 5px;
}

.oppia-gallery-tiles-introduction {
  font-size: 1em;
  padding-bottom: 20px;
  padding-top: 40px;
}

.oppia-gallery-tiles-container {
  height: 100%;
  margin-left: auto;
  margin-right: auto;
  max-width: 800px;
  min-height: 500px;
  padding: 25px;
}

md-card.oppia-gallery-tile {
  background-color: #fff;
  border-bottom: 1px solid #ccc;
  color: #888;
  height: 120px;
  margin: 0;
  padding: 0;
  position: relative;
  width: 100%;
}
.oppia-gallery-tile:hover {
  background-color: #f5f5f5;
}

.oppia-gallery-tile-container-link {
  height: 100%;
  width: 100%;
}

.oppia-gallery-tile-image-container {
  height: 120px;
  left: 0;
  top: 0;
  width: 120px;
}
/* This centers the image horizontally and vertically. */
.oppia-gallery-tile-image {
  height: 120px;
  width: 120px;
}

.oppia-gallery-tile-image-translucent {
  opacity: 0.7;
}
.oppia-gallery-tile-image-teal {
  background-color: #05a69a;
}
.oppia-gallery-tile-image-salmon {
  background-color: #f35f55;
}
.oppia-gallery-tile-image-sunnyside {
  background-color: #f7a541;
}
.oppia-gallery-tile-image-sharkfin {
  background-color: #058ca6;
}
.oppia-gallery-tile-image-gunmetal {
  background-color: #607d8b;
}

.oppia-gallery-tile-contents {
  height: 100%;
  padding: 23px 58px;
  width: 100%;
}
.oppia-gallery-tile-contents:hover {
  text-decoration: none;
}

.oppia-gallery-tile-details {
  padding-left: 100px;
  padding-top: 5px;
}
.oppia-gallery-tile-first-row {
  font-size: 120%;
  margin-bottom: 8px;
}
.oppia-gallery-tile-title {
  color: #333;
  font-weight: bold;
}

.oppia-gallery-tile-second-row {
  font-size: 90%;
}

.oppia-gallery-edit-btn {
  font-size: 12px;
  margin-top: 10px;
  position: absolute;
  right: 1px;
  top: -9px;
}
.oppia-gallery-edit-btn:hover {
  background: #47a447;
  border-color: #4cae4c;
  color: white;
}

.carousel-indicators {
  display: none;
}

.carousel-control .glyphicon-chevron-left,
.carousel-control .glyphicon-chevron-right,
.carousel-control .icon-prev,
.carousel-control .icon-next {
  margin-top: -80px;
}

.oppia-page-title {
  color: #222;
  font-size: 30px;
  margin: 0 0 20px 0;
}

.oppia-content {
  margin: 0 auto;
  max-width: 630px;
  -webkit-overflow-scrolling: touch;
  width: 80%;
}

.oppia-alert-blocks {
  left: 10%;
  position: fixed;
  width: 80%;
  z-index: 3000;
}

.oppia-form input.ng-invalid.ng-dirty {
  border: 2px solid #FA787E;
}

.oppia-form input.ng-valid.ng-dirty {
  border: 2px solid #78FA89;
}

.oppia-gallery-frame {
  border-radius: 20px;
  margin: 10px;
  padding: 10px;
  width: 100%;
}

.oppia-grayed {
  color: gray;
  opacity: 0.5;
}

.oppia-help {
  height: 16px;
  width: 16px;
}

.oppia-main-body {
  height: 100%;
  margin: 0 auto -4em;
  min-height: 100%;
}

.oppia-cc-icon {
  bottom: -50px;
  position: absolute;
  right: 25px;
}

.oppia-wide-panel {
  border: 1px solid #dde0FF;
  border-radius: 20px;
  width: 100%;
}
.oppia-wide-panel-content, .oppia-about {
  font-size: large;
  margin: 5px auto;
  min-height: 400px;
  padding: 20px;
}
.oppia-about {
  margin-top: 0;
}

.oppia-warning {
  background: #F9EDBE;
  width: 80%;
  max-width: 700px;
}
.oppia-warning-chevron {
  font-size: 10px;
  padding-left: 4px;
  padding-top: 4px;
}

.oppia-placeholder {
  color: #888;
  font-style: italic;
}

.oppia-state-name-container {
  background: #eee;
  border-bottom-left-radius: 5px;
  margin: 2px 7px;
  padding: 6px;
}

.oppia-editor-cards-container {
  margin: auto;
  max-width: 560px;
}
.oppia-editor-card-with-avatar {
  background: rgb(255,255,255);
  margin-left: auto;
  margin-right: auto;
  margin-top: 20px;
  max-width: 560px;
  padding: 0;
}

.oppia-editor-card {
  background: rgb(255,255,255);
  margin-left: auto;
  margin-right: auto;
  margin-top: 30px;
  max-width: 800px;
  padding: 32px;
  padding-bottom: 40px;
}

.oppia-editor-avatar {
  height: 24px;
  left: -40px;
  position: absolute;
  width: 24px;
}

.oppia-editor-card-body {
  position: relative;
}
.oppia-editor-card-body h3 {
  font-size: 18px;
  margin: 0;
}
.oppia-editor-card-body h4 {
  font-size: 14px;
  margin: 0;
}
.oppia-editor-card-body form {
  margin: 0;
}

.oppia-editor-card-section {
  margin-left: 35px;
  padding: 0 50px 0 20px;
}

.oppia-state-content {
  min-height: 20px;
  padding: 5px 0 15px 10px;
}

.oppia-state-content-display {
  padding: 4px;
  text-align: justify;
  width: 445px;
}

.oppia-prevent-selection {
  -moz-user-select: none;
  -ms-user-select: none;
  -webkit-user-select: none;
}

.oppia-save-state-item-button {
  margin-top: 2px;
}

.oppia-editable-section {
  cursor: pointer;
  position: relative;
}
.oppia-editable-section:hover .oppia-state-content-display,
.oppia-editable-section:hover .oppia-interaction-preview {
  background: #eee;
  border-radius: 4px;
}

.oppia-interaction-preview {
  padding: 4px;
}

.oppia-editor-edit-icon {
  font-size: 16px;
  opacity: 0.2;
  position: absolute;
  right: -20px;
  top: 5px;
}

.oppia-editable-section:hover .oppia-editor-edit-icon {
  opacity: 0.8;
}

.oppia-click-to-start-editing {
  height: 100%;
  position: absolute;
  width: 100%;
  z-index: 50;
}

/* Styles for the state graph vizualization. */

.oppia-graph-viz-container {
  border-radius: 4px;
  border: 1px solid #ccc;
  height: 250px;
  margin-top: 5px;
  overflow-y: hidden;
}

/* Styles for the statistics page. */

.oppia-back-arrow {
  float: left;
  margin-right: 5px;
}

.oppia-add-rule-button {
  border: 0;
  border-top: 1px solid #ccc;
  border-bottom: 1px solid #ccc;
  border-radius: 0;
  font-size: 14px;
  padding: 7px;
  width: 100%;
}

.oppia-add-rule-button:hover {
  background-color: #eaeaea;
}

.oppia-small-delete-button {
  padding-top: 3px;
}

.oppia-graph-resize-button {
  margin-top: -1px;
  padding: 9px 10px 6px 10px;
  position: absolute;
  right: 5px;
}

.nav-pills > li > a.oppia-rule-tab {
  background: #e5e5e5;
  border-radius: 0;
  border-bottom: 1px solid #f0f0f0;
  color: #aaa;
  padding: 7px 15px;
  width: 100%;
}
.nav-pills > li:hover > a.oppia-rule-tab {
  background: #eaeaea;
}
.nav-pills > li.active > a.oppia-rule-tab-active {
  background: #f5f5fa;
  border-right: 0;
  color: #333;
  cursor: default;
}

.oppia-default-rule-tab {
  border-left: 1px solid #ddd;
}

.oppia-rule-body-container {
  padding-left: 0;
  padding-right: 0;
  width: 100%;
}

.oppia-readonly-rule-tile {
  border-radius: 4px;
  margin-bottom: 0;
  margin-left: 0;
  padding: 4px;
}

.oppia-readonly-rule-tile:hover {
  background-color: #eee;
}

.oppia-readonly-rule-tile img {
  max-height: 50px;
}

.oppia-rule-dest-link {
  margin-left: 5px;
  position: absolute;
  width: 400px;
  /* This must be larger than the z-index in
     .oppia-interactive-section-click-handler, so that the rule does not
     switch to edit mode when the destination link is clicked. */
  z-index: 200;
}

.oppia-rule-save-cancel-buttons {
  margin-bottom: 5px;
  margin-top: 2px;
}

.oppia-rule-sort-handle {
  cursor: move;
}
.oppia-rule-sort-arrows-container {
  left: 10px;
  margin-left: 5px;
  opacity: 0.4;
  position: absolute;
  top: 4px;
  width: 25px;
  /* This is needed for the sort handle to be above the rule tile. */
  z-index: 1;
}
.oppia-rule-sort-arrows {
  font-size: 18px;
  margin-left: 3px;
  padding-top: 11px;
  padding-bottom: 11px;
}

.oppia-rule-edit-feedback {
  position: relative;
}

.about-tabs {
  margin-bottom: 0;
}

table.oppia-padded-table {
  border: 1px solid black;
  padding: 5px;
}
table.oppia-padded-table th, table.oppia-padded-table td {
  border: 1px solid black;
  padding: 5px;
}

/* Styles for parameter labels. */
oppia-parameter {
  background-color: #18447E;
  border-radius: .25em;
  color: white;
  display: inline;
  font-size: 75%;
  font-weight: bold;
  line-height: 1;
  margin: auto 4px;
  padding: .2em .6em .3em;
  text-align: center;
  vertical-align: baseline;
  white-space: nowrap;
}

.oppia-tutorial-tooltip {
  min-width: 400px !important;
}

.oppia-post-tutorial-popover {
   display: block;
   left: -77px;
   top: 40px;
   width: 200px;
}

/* Hide the search icon in the rule destination dropdown. */
.oppia-rule-dest-select2 .select2-search input {
  background: none;
}

.oppia-dashboard-row {
  cursor: pointer;
}
.oppia-dashboard-row:hover {
  background: #eee;
}
.oppia-dashboard-row-recent {
  background: #fff4ca;
  cursor: pointer;
}
.oppia-dashboard-row-recent:hover {
  background: #ffe279;
}

.oppia-large-modal-window .modal-dialog {
  max-width: 900px;
  width: 80%;
}
.oppia-large-modal-window .modal-body {
  height: 60vh;
}

.oppia-vcenter {
  display: table-cell;
  float: none;
  vertical-align: middle;
}

.oppia-disabled-link {
  opacity: 0.6;
  pointer-events: none;
}

/* Splash page. */

.oppia-splash-search-form {
  margin-top: 10px;
  padding-right: 0px;
}

.oppia-splash-search-input {
  background: #04857c;
  border: 1px solid #018c7f;
  border-radius: 0;
  color: white;
  font-size: 15px;
  height: 34px;
}

.oppia-splash-search-input.btn {
  color: rgba(255,255,255,0.7);
}

.oppia-splash-search-input.btn:hover {
  color: #fff;
}

.oppia-splash-search-input::-webkit-input-placeholder {
  color: #ccc;
}
.oppia-splash-search-input:-moz-placeholder {
  color: #ccc;
}
.oppia-splash-search-input::-moz-placeholder {
  color: #ccc;
}
.oppia-splash-search-input:-ms-input-placeholder {
  color: #ccc;
}

.oppia-splash-search-icon {
  background: #04857c;
  border: 1px solid #018c7f;
  color: white;
}

/* CSS3 Animations */
@-ms-keyframes spin {
  from { -ms-transform: rotate(0deg); }
  to { -ms-transform: rotate(360deg); }
}
@-moz-keyframes spin {
  from { -moz-transform: rotate(0deg); }
  to { -moz-transform: rotate(360deg); }
}
@-webkit-keyframes spin {
  from { -webkit-transform: rotate(0deg); }
  to { -webkit-transform: rotate(360deg); }
}
@keyframes spin {
  from { transform: rotate(0deg); }
  to { transform: rotate(360deg); }
}

.oppia-animate-spin {
  -webkit-animation-name: spin;
  -webkit-animation-duration: 1000ms;
  -webkit-animation-iteration-count: infinite;
  -webkit-animation-timing-function: ease-in-out;

  -moz-animation-name: spin;
  -moz-animation-duration: 1000ms;
  -moz-animation-iteration-count: infinite;
  -moz-animation-timing-function: ease-in-out;

  -ms-animation-name: spin;
  -ms-animation-duration: 1000ms;
  -ms-animation-iteration-count: infinite;
  -ms-animation-timing-function: ease-in-out;

  animation-name: spin;
  animation-duration: 1000ms;
  animation-iteration-count: infinite;
  animation-timing-function: ease-in-out;
}

.oppia-gallery-banner {
  background-repeat: no-repeat;
  background-size: cover;
  height: 650px;
  width: 100%;
}
.oppia-gallery-banner-content {
  color: #fff;
  font-family: "Capriola", "Roboto", Arial, sans-serif;
  font-size: 48px;
  position: absolute;
  text-align: center;
  top: 205px;
  width: 100%;
  z-index: 100;
}

.oppia-gallery-banner-tagline {
  color: #fff;
  font-family: "Capriola", "Roboto", Arial, sans-serif;
  font-size: 20px;
  padding-top: 245px;
}

.oppia-gallery-banner-link {
  color: rgba(251, 234, 43, 0.9);
}
.oppia-gallery-banner-link:hover {
  color: rgba(251, 234, 43, 1.0);
  text-decoration: none;
}

.oppia-gallery-interstitial {
  background: linear-gradient(to bottom, rgba(255,255,255,.9), rgba(255,255,255,1));
  box-shadow: 0 1px 3px rgba(0,0,0,0.12), 0 1px 2px rgba(0,0,0,0.24);
  font-size: 1.3em;
  height: 120px;
  margin-top: -120px;
  padding-top: 45px;
  position: relative;
  text-align: center;
  width: 100%;
}

oppia-expression-error-tag {
  background-color: #d9534f;
  border-radius: .25em;
  color: white;
  display: inline;
  font-size: 75%;
  font-weight: bold;
  line-height: 1;
  margin: auto 4px;
  padding: .2em .6em .3em;
  text-align: center;
  vertical-align: baseline;
  white-space: nowrap;
}
oppia-expression-error-tag:after {
  content: "Expression parsing error!";
}

/* Adjust the z-index for the tutorial components so that they do not go
   above the navbar.
*/
.ng-joyride-element-static[data-original-title],
div.ng-joyride-title {
  z-index: 999;
}
.ng-joyride.popover.sharp-borders {
  z-index: 1002;
}
div#ng-curtain {
  z-index: 997;
}

.oppia-navbar {
  box-shadow: 0 3px 6px rgba(0,0,0,0.16), 0 3px 6px rgba(0,0,0,0.23);
  cursor: default;
  position: fixed;
  /* This is larger than the editor tutorial's z-index, but smaller than
     the z-index for Bootstrap modals.
  */
  z-index: 1005;
}
.oppia-top-of-page-padding {
  /* This ensures that content is not tucked behind the fixed navbar. */
  padding-top: 50px;
}
.oppia-navbar-menu {
  margin-left: 10px;
  opacity: 0.9;
  outline-color: transparent;
}

.oppia-navbar-brand-name {
  float: left;
  height: 56px;
  line-height: 20px;
  margin-left: -10px;
  opacity: 0.9;
}

.oppia-navbar-brand-name:hover, .oppia-navbar-menu:hover {
  opacity: 1;
}

.oppia-logo {
  display: inline-block;
  font-family: "Capriola", "Roboto", Arial, sans-serif;
  font-size: 21px;
  font-weight: 300;
  height: 40px;
  margin-left: 6px;
  margin-top: 9px;
}
.oppia-navbar-profile-picture-container {
  margin-top: -7px;
  margin-left: -5px;
  text-align: right;
}
.oppia-navbar-profile-picture {
  height: 32px;
  width: 32px;
  margin-left: 15px;
}
.oppia-navbar-role-indicator {
  background-color: #f7a541;
  border-radius: 20px;
  bottom: 10px;
  height: 15px;
  position: absolute;
  right: 25px;
  width: 15px;
}
.oppia-navbar-role-text {
  bottom: -3px;
  color: white;
  font-size: 0.7em;
  font-weight: bold;
  position: absolute;
  right: 3px;
}

.oppia-navbar-dashboard-indicator {
  background-color: #f7a541;
  border-radius: 20px;
  height: 15px;
  position: absolute;
  right: 25px;
  top: 8px;
  width: 15px;
}
.oppia-navbar-dashboard-indicator-text {
  bottom: -3px;
  color: white;
  font-size: 0.7em;
  font-weight: bold;
  position: absolute;
  right: 4px;
}

.oppia-select {
  background: white;
  border: #ddd solid 1px;
  border-radius: 4px;
  color: #555;
  padding: 5px;
}

.oppia-feedback-tab-row {
  cursor: pointer;
}
.oppia-feedback-tab-row:hover {
  background: #eee;
}


.oppia-editor-sidebar {
  box-shadow: 0 1px 3px rgba(0,0,0,0.12), 0 1px 2px rgba(0,0,0,0.24);
  height: 100%;
  max-width: 25%;
  padding: 7px 5px 0 5px;
  position: fixed;
  right: 0;
  top: 50px;
  width: 400px;
}
.oppia-editor-sidebar accordion .panel {
  border-radius: 0;
}
.oppia-editor-sidebar accordion .panel .panel-heading {
  background-color: #ddd;
  border-radius: 0;
  padding: 3px 10px;
}
.oppia-editor-sidebar accordion .panel .panel-title {
  font-weight: bold;
}
.oppia-editor-sidebar accordion .panel .panel-body {
  border-radius: 0;
  padding-right: 25px;
}
.oppia-editor-sidebar-section-header {
  background-color: #ddd;
  font-size: 1.2em;
  font-weight: bold;
  padding: 3px 10px;
}
.oppia-editor-sidebar-section-body {
  background-color: #fff;
  margin-bottom: 5px;
  padding-right: 25px;
  padding: 0 10px;
}

.oppia-exploration-warnings-indicator {
  border-color: transparent transparent rgb(244,244,15) transparent;
  border-style: inset;
  border-width: 0 9px 14px 9px;
  bottom: 10px;
  color: #333;
  font-size: 0.8em;
  font-weight: bold;
  height: 0;
  position: absolute;
  right: 5px;
  width: 0;
}
.oppia-exploration-warnings-count {
  margin-left: -3px;
}
.dropdown-menu.oppia-exploration-warnings-box {
  background: #fcf8e3;
}
.oppia-exploration-warnings-header {
  font-size: 0.8em;
  font-weight: bold;
  margin: 0 5px;
}
.oppia-exploration-warnings-text {
  font-size: 0.9em;
  padding: 2px 5px;
  width: 250px;
}
.oppia-exploration-warnings-separator {
  margin: 0;
}

/* Adding multilevel submenu functionality to Bootstrap's dropdown
    See http://bootsnipp.com/snippets/featured/multi-level-dropdown-menu-bs3
*/
.oppia-dropdown-submenu {
  position: relative;
}

.oppia-dropdown-submenu > .dropdown-menu {
  border-radius: 0 6px 6px 6px;
  left: 100%;
  margin-top: -6px;
  margin-left: -1px;
  -moz-border-radius: 0 6px 6px;
  top: 0;
  -webkit-border-radius: 0 6px 6px 6px;
}

.oppia-dropdown-submenu:hover > .dropdown-menu {
  display: block;
}

.oppia-dropdown-submenu > a:after {
  border-color: transparent;
  border-style: solid;
  border-width: 5px 0 5px 5px;
  border-left-color: #ccc;
  content: " ";
  display: block;
  float: right;
  height: 0;
  margin-top: 5px;
  margin-right: -10px;
  width: 0;
}

.oppia-dropdown-submenu:hover > a:after {
  border-left-color: #fff;
}

.oppia-dropdown-submenu.pull-left {
  float: none;
}

.oppia-dropdown-submenu.pull-left > .dropdown-menu {
  border-radius: 6px 0 6px 6px;
  left: -100%;
  margin-left: 10px;
  -moz-border-radius: 6px 0 6px 6px;
  -webkit-border-radius: 6px 0 6px 6px;
}


.oppia-profile-picture-crop-area {
  background: #E4E4E4;
  height: 350px;
  margin-top: 20px;
  position: relative;
  width: 500px;
}
.oppia-profile-picture-reset-button {
  position: absolute;
  right: -50px;
  top: 0;
}


.oppia-about-cards-container {
  margin: auto;
  max-width: 660px;
  position: relative;
}
.oppia-about-card {
  background: rgb(255,255,255);
  margin-left: auto;
  margin-right: auto;
  margin-top: 30px;
  padding: 20px 40px;
}
.oppia-about-card li {
  margin-bottom: 10px;
}
.oppia-about-anchor {
  display: block;
  position: relative;
  top: -70px;
  visibility: hidden;
}

.oppia-about-right-menu {
  width: 300px;
  position: fixed;
  top: 80px;
  left: 50%;
  margin-left: 360px;
}

.oppia-about-right-menu-subnav {
  font-size: 12px;
  margin-left: 0.7em;
}

.oppia-about-right-menu p {
  line-height: 1;
  margin: 0.5em 0;
}
.oppia-about-right-menu ul {
  list-style-type: none;
  padding-left: 20px;
}